Each batch of nanoparticles is extensively characterized using techniques including SEM or TEM, XRD, COA, etc. In addition to ensuring that every batch of nanoparticles meets our stringent quality control requirements, customers are provided with batch-specific specification sheets containing representative SEM/TEM images,Coatings,dispersions, and solution pH. precious metal gold nano, Superfine Silicon Powder , 20nm Iridium Nanoparticles , Tungsten Nanoparticles ,100nm Copper Nanoparticles . HONGWU is an ISO certificated Chinese factory professional in ultrafine nano sized powder material produce and export, with nearly 20 years experience in this industry. We have developed mature and advanced production and quality control process, assure good and stable supplier for customers. Our products including element nanoparticles ( precious metal, base metal, alloys, non-metals), one-dimensional nano materials (AgNWs silver nanowires, CuNWs copper nanowires, ZnO nanowires, TiO2 nanotubes, carbon nanotubes cnts ), Oxides nanoparticles, Dispersions, etc. The product will supply to all over the world, such as Europe, America, Australia,Malaysia, India,Slovakia, Sheffield.If you're planning to order small sample or larger quantities for your industrial or academic needs, please note that customization of parameters are available, such as size, functionalities, SSA, packages,etc.